aura: Remove an unnecessary parameter from DispatcherClient::RunWithDispatcher.

ash/accelerators/nested_dispatcher_controller_unittest.cc

Index: ash/accelerators/nested_dispatcher_controller_unittest.cc
diff --git a/ash/accelerators/nested_dispatcher_controller_unittest.cc b/ash/accelerators/nested_dispatcher_controller_unittest.cc
index 41a6e9a854cbc01e110214ec22a5ade54b2d9ac2..3749c7f317c90864562431d39d9c8de702d4898a 100644
--- a/ash/accelerators/nested_dispatcher_controller_unittest.cc
+++ b/ash/accelerators/nested_dispatcher_controller_unittest.cc
@@ -109,8 +109,7 @@ TEST_F(NestedDispatcherTest, AssociatedWindowBelowLockScreen) {
   aura::Window* root_window = ash::Shell::GetPrimaryRootWindow();
   aura::client::GetDispatcherClient(root_window)->RunWithDispatcher(
       &inner_dispatcher,
-      associated_window.get(),
-      true /* nestable_tasks_allowed */);
+      associated_window.get());
   EXPECT_EQ(0, inner_dispatcher.num_key_events_dispatched());
   Shell::GetInstance()->session_state_delegate()->UnlockScreen();
 }
@@ -130,8 +129,7 @@ TEST_F(NestedDispatcherTest, AssociatedWindowAboveLockScreen) {
   aura::Window* root_window = ash::Shell::GetPrimaryRootWindow();
   aura::client::GetDispatcherClient(root_window)->RunWithDispatcher(
       &inner_dispatcher,
-      associated_window.get(),
-      true /* nestable_tasks_allowed */);
+      associated_window.get());
   EXPECT_EQ(1, inner_dispatcher.num_key_events_dispatched());
 }
 
@@ -149,8 +147,7 @@ TEST_F(NestedDispatcherTest, AcceleratorsHandled) {
   DispatchKeyReleaseA();
   aura::client::GetDispatcherClient(root_window)->RunWithDispatcher(
       &inner_dispatcher,
-      root_window,
-      true /* nestable_tasks_allowed */);
+      root_window);
   EXPECT_EQ(0, inner_dispatcher.num_key_events_dispatched());
   EXPECT_EQ(1, target.accelerator_pressed_count());
 }